I'm sorry to hear that you're having trouble with your new TV.
Unfortunately, there's not much I can do in terms of troubleshooting this particular symptom. I'd recommend calling the Samsung customer service center in your region to see if you can get it scheduled for a repair.
I'm having a problem with my Samsung LE40C550 LCD tv. I bought it about 1 month ago. The tv always worked perfectly, but now I can't switch it on anymore. I don't know what caused this. When I try to switch the tv on, the red standby dot flashes 6 times. Then it stops for like 10 seconds and then it flashes 6 times again. It only stops when I unplug the tv. Does anyone know what this means? And how to fix it?